Methylene Blue, USP, CAS Number 7220-79-3, Molecular Weight 373.90, Chemical Formula C16H18N3SCl x 3H2O, Container Size 25g, Container Material Amber Glass, Shelf Life 24 Months, Shipping Restrictions Chemical Not Regulated For Transport, Special Information Chemically Classed As A Thiazine Compound RestrictionsHazardous Material 094716195938